leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drm/nouveau/bl: Do not register interface if Apple GMUX detected

Browse Source 
The Apple GMUX is the one managing the backlight, so there is no need for
Nouveau to register its own backlight interface.

v2: Do not split information message on two lines as it prevents from grepping
    it, as pointed out by Lukas Wunner

v3: Add a missing end-of-line character to the printed message

Signed-off-by: Pierre Moreau <pierre.morrow@free.fr>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Pierre Moreau 2016-12-08 00:57:09 +01:00 committed by Ben Skeggs
parent db1a0ae214
commit b53ac1ee12
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/nouveau/nouveau_backlight.c
View File

@ -30,6 +30,7 @@
* Register locations derived from NVClock by Roderick Colenbrander
*/
#include <linux/apple-gmux.h>
#include <linux/backlight.h>
#include <linux/idr.h>
@ -267,6 +268,11 @@ nouveau_backlight_init(struct drm_device *dev)
struct nvif_device *device = &drm->device;
struct drm_connector *connector;
if (apple_gmux_present()) {
NV_INFO(drm, "Apple GMUX detected: not registering Nouveau backlight interface\n");
return 0;
}
INIT_LIST_HEAD(&drm->bl_connectors);
list_for_each_entry(connector, &dev->mode_config.connector_list, head) {